* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    background-color: #121212;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
}

.player-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 24px;
    background-color: #181818;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    border-radius: 8px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    gap: 24px;
}

.search-container {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-container input {
    width: 100%;
    padding: 12px 40px 12px 16px;
    background-color: #282828;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 500px;
    color: #fff;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.search-container input:focus {
    outline: none;
    border-color: #1DB954;
    box-shadow: 0 0 0 2px rgba(29, 185, 84, 0.3);
}

.search-container .search-icon {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #b3b3b3;
    pointer-events: none;
}

.auth-buttons {
    display: flex;
    gap: 16px;
    align-items: center;
}

.auth-link {
    text-decoration: none;
    color: #fff;
    padding: 8px 32px;
    border-radius: 500px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 0.8rem;
    transition: all 0.3s;
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.auth-link:hover {
    border-color: #fff;
    transform: scale(1.04);
}

.username {
    margin-right: 16px;
    color: #fff;
    font-weight: 500;
}

.auth-container {
    max-width: 450px;
    margin: 0 auto;
    padding: 40px;
    background-color: #181818;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    border-radius: 8px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    color: #b3b3b3;
    font-size: 0.875rem;
    font-weight: 500;
}

.form-group input {
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    background-color: #282828;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #1DB954;
    box-shadow: 0 0 0 2px rgba(29, 185, 84, 0.3);
}

.auth-btn {
    padding: 14px;
    background-color: #1DB954;
    color: #fff;
    border: none;
    border-radius: 500px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.3s;
}

.auth-btn:hover {
    background-color: #1ed760;
    transform: scale(1.04);
}

.alert {
    padding: 12px;
    margin-bottom: 20px;
    background-color: rgba(255, 107, 107, 0.1);
    color: #ff6b6b;
    border: 1px solid rgba(255, 107, 107, 0.2);
    border-radius: 4px;
}

.track-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    margin: 4px 0;
    background-color: transparent;
    color: #b3b3b3;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.track-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.track-item.active {
    background-color: rgba(29, 185, 84, 0.2);
    color: #fff;
}

.favorite-btn {
    background: none;
    border: none;
    color: #b3b3b3;
    cursor: pointer;
    padding: 8px;
    transition: all 0.3s;
}

.favorite-btn:hover {
    color: #1DB954;
    transform: scale(1.2);
}

.favorite-btn.active {
    color: #1DB954;
}

#shuffle-btn.active {
    color: #1DB954;
}

h1 {
    text-align: center;
    margin-bottom: 32px;
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(to right, #1DB954, #1ed760);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.playlist-tabs {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 500px;
    color: #b3b3b3;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.tab-btn:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
}

.tab-btn.active {
    background: #1DB954;
    color: #fff;
    border-color: #1DB954;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

/* Стили для загрузки файлов */
#upload-container {
    padding: 20px 0;
}

.upload-area {
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    transition: all 0.3s ease;
    background-color: rgba(255, 255, 255, 0.05);
    cursor: pointer;
}

.upload-area.highlight {
    border-color: #3498db;
    background-color: rgba(52, 152, 219, 0.1);
}

.upload-area:hover, .upload-area.dragover {
    border-color: #1DB954;
    background-color: rgba(29, 185, 84, 0.1);
}

.upload-icon {
    font-size: 48px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 16px;
}

.upload-text {
    margin-bottom: 16px;
    color: rgba(255, 255, 255, 0.8);
}

.upload-button {
    display: inline-block;
    padding: 10px 24px;
    background-color: #1DB954;
    color: white;
    border-radius: 500px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 16px;
}

.upload-button:hover {
    transform: scale(1.05);
    background-color: #1ed760;
}

.upload-info {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

.upload-progress-container {
    margin-top: 24px;
}

.upload-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.upload-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.upload-item-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-right: 16px;
}

.upload-item-progress {
    width: 150px;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-right: 16px;
}

.upload-item-progress-bar {
    height: 100%;
    background-color: #1DB954;
    width: 0%;
    transition: width 0.3s ease;
}

.upload-item-status {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    width: 80px;
    text-align: right;
}

.upload-item-status.success {
    color: #1DB954;
}

.upload-item-status.error {
    color: #ff5252;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.current-track {
    margin-bottom: 32px;
    padding: 24px;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.track-info {
    text-align: center;
    margin-bottom: 24px;
}

.progress-container {
    margin-bottom: 16px;
}

.progress-bar {
    background: rgba(255, 255, 255, 0.1);
    height: 4px;
    border-radius: 2px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.progress {
    background: #1DB954;
    width: 0;
    height: 100%;
    border-radius: 2px;
    transition: width 0.1s linear;
}

.time-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #b3b3b3;
    margin-top: 8px;
}

.controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    margin-bottom: 32px;
}

.control-btn {
    background: none;
    border: none;
    color: #b3b3b3;
    cursor: pointer;
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.control-btn:hover {
    color: #fff;
    transform: scale(1.1);
}

.control-btn.play-pause {
    background-color: #1DB954;
    color: #fff;
    width: 56px;
    height: 56px;
    font-size: 2rem;
}

.control-btn.play-pause:hover {
    background-color: #1ed760;
    transform: scale(1.08);
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 12px;
}

#volume {
    width: 100px;
    cursor: pointer;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.1);
    height: 4px;
    border-radius: 2px;
}

#volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    transition: all 0.3s;
}

#volume::-webkit-slider-thumb:hover {
    background: #1DB954;
    transform: scale(1.2);
}

.playlist {
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 24px;
}

.playlist-tabs {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.tab-btn {
    background: none;
    border: none;
    color: #b3b3b3;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: 500px;
    transition: all 0.3s;
}

.tab-btn:hover {
    color: #fff;
}

.tab-btn.active {
    background-color: #1DB954;
    color: #fff;
}

.tab-content {
    display: none;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 8px;
}

.tab-content.active {
    display: block;
}

.tab-content::-webkit-scrollbar {
    width: 8px;
}

.tab-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.tab-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

.tab-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

.playlist h2 {
    margin-bottom: 16px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

#track-list {
    list-style: none;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 8px;
}

#track-list::-webkit-scrollbar {
    width: 8px;
}

#track-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

#track-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

#track-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* Медиа-запросы для адаптивного дизайна */
@media screen and (max-width: 768px) {
    .player-container {
        padding: 16px;
        max-width: 100%;
        border-radius: 0;
    }
    
    .header {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .search-container {
        max-width: 100%;
    }
    
    .auth-buttons {
        justify-content: center;
    }
    
    .auth-link {
        padding: 8px 16px;
        font-size: 0.7rem;
    }
    
    .controls {
        gap: 16px;
    }
    
    .control-btn {
        width: 36px;
        height: 36px;
        font-size: 1.2rem;
    }
    
    .control-btn.play-pause {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }
    
    .playlist-tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 1;
        text-align: center;
        padding: 8px 12px;
    }
    
    .tab-content {
        max-height: 300px;
    }
}

@media screen and (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
        margin-bottom: 16px;
    }
    
    .player-container {
        padding: 12px;
    }
    
    .current-track {
        padding: 16px;
        margin-bottom: 16px;
    }
    
    .controls {
        gap: 12px;
    }
    
    .control-btn {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
    
    .control-btn.play-pause {
        width: 42px;
        height: 42px;
        font-size: 1.3rem;
    }
    
    .volume-control {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }
    
    #volume {
        width: 80px;
    }
    
    .track-item {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
    
    .auth-container {
        padding: 20px;
        max-width: 100%;
    }
    
    .auth-form {
        gap: 16px;
    }
    
    .form-group input {
        padding: 10px;
        font-size: 0.9rem;
    }
    
    .auth-btn {
        padding: 12px;
        font-size: 0.9rem;
    }
}